Additive Inn
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Reverse-engineered strap buckle

A replacement side-release buckle, modelled from the original in two parts and 3D printed in white, that clips shut and lets go by hand.

What it is
A two-part side-release buckle for a strap
How it was made
FDM 3D printed in white, left as printed
How we checked it
Clipped shut and released by hand on camera

What we brought

  1. What we can do

    From your old part to a working copy

    We modelled both halves of the buckle from the original, so it works like the part it replaces.

  2. How we look after you

    Printed in our own studio

    Both halves were 3D printed on our FDM printers in Singapore, in white, and left as printed.

  3. What you get

    Tested by hand before handover

    We clipped the buckle shut and released it by hand, on camera, before handover.

The build

How we built it

5 steps, from the brief to the finished piece. Pick a step to jump to it.

The brief

Step 1 of 5

Type
A side-release buckle, in two parts
Strap
A slot at each end for the webbing
Use
Clips shut and releases by hand

At Additive Inn, our 3D printing studio in Singapore, we made a replacement strap buckle. Our client needed a new side-release buckle that clips shut, holds the strap and lets go with a squeeze, like the one it replaces.

Measuring and modelling

Step 2 of 5

We measured the original buckle and modelled both halves in CAD: the socket, and the clip whose two springy arms snap into it and let go when the tabs on either side are pressed in.

Production

Step 3 of 5

We 3D printed both halves in white by FDM in our studio. The fine lines across the surface are the printed layers, left as they are, with no paint or coating.

The two printed halves, side by side.
Printed layer lines along the edge.

Checks

Step 4 of 5

We slid the clip into the socket until its arms snapped home, then pressed the side tabs to release it, and repeated the test on camera to show it clips and lets go.

The socket and the clip, apart.
Squeezed, released and clipped shut again.

The final build

Step 5 of 5

The finished buckle clips shut in one push and comes apart with a squeeze of its two side tabs, ready for the strap to be threaded through the slots at each end.

The finished buckle, clipped shut.

More production runs

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